Add Dark Engine

[MichaelHinrichs]

SteamDB app page links to a few games using this

https://steamdb.info/app/211600/ https://steamdb.info/app/211740/

Brief explanation of the change

Add the Dark Engine, used in the Thief series by Looking Glass Studios.

[MichaelHinrichs]

Two apps.

[Lifeismana]

good news, that's what i marked

[MichaelHinrichs]

there's also another game that is supposed to use this engine, but idk if 3 games is enough

Actually, the Dark engine and Shock engine are supposed to be separate things, but they are very similar.

[MichaelHinrichs]

@Lifeismana Wait, so did you want me to ADD "res/intrface.crf", or to REPLACE "DROMED.ZIP" with it? Because you said to do one thing in "Engine.DarkEngine.txt", and the other in "rules.ini".

[Lifeismana]

Replace the rule and replace the old strings with the string i gave and then run the generate strings script

[SteamDB-Tracker]

After running changed rules in this pull request (this bot only tests rules.ini changes):

Changed technologies: Engine.DarkEngine

These apps now match: (3) 211600 211740 238210

Please confirm that all these changed apps are correct.

[Lifeismana]

not used by enough apps